mirror of
https://github.com/torvalds/linux
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7c1c1d4a7b
Refactor the dmaengine PCM library to allow the DMA channel to be requested
before opening a PCM substream. snd_dmaengine_pcm_open() now expects a DMA
channel instead of a filter function and filter parameter as its parameters.
snd_dmaengine_pcm_close() is updated to not release the DMA channel. This allows
a dmaengine based PCM driver to request its channels before the substream is
opened.
The patch also introduces two new functions, snd_dmaengine_pcm_open_request_chan()
and snd_dmaengine_pcm_close_release_chan(), which have the same signature and
behaviour of the old snd_dmaengine_pcm_{open,close}() and internally use the new
variants of these functions. All users of snd_dmaengine_pcm_{open,close}() are
updated to use snd_dmaengine_pcm_open_request_chan() and
snd_dmaengine_pcm_close_release_chan().
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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| .. | ||
| am3517evm.c | ||
| ams-delta.c | ||
| Kconfig | ||
| Makefile | ||
| mcbsp.c | ||
| mcbsp.h | ||
| n810.c | ||
| omap-abe-twl6040.c | ||
| omap-dmic.c | ||
| omap-dmic.h | ||
| omap-hdmi-card.c | ||
| omap-hdmi.c | ||
| omap-hdmi.h | ||
| omap-mcbsp.c | ||
| omap-mcbsp.h | ||
| omap-mcpdm.c | ||
| omap-mcpdm.h | ||
| omap-pcm.c | ||
| omap-twl4030.c | ||
| omap3pandora.c | ||
| osk5912.c | ||
| rx51.c | ||